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【单选题】
鼻饲插管过程中,病人发生呛咳,呼吸困难A.
嘱病人作深呼吸
B.
将病人头部抬高
C.
立即拔出胃管
D.
停止片刻，嘱深呼吸，再轻轻插入
E.
指导病人做吞咽动作
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举一反三
【单选题】is a set of hardware and software standards developed by Intel, Microsoft and others.
A.
Plug and play
B.
Architecture
C.
PCI
D.
HPSB
【单选题】User programs interact with the kernel through a set of standard(71). They request services to be provided by the kernel. Such services would include accessing a file: open close, read, write, link, o...
A.
system commands
B.
system transfer
C.
system calls
D.
system rings
【单选题】is a set of hardware standards that allows expansion boards and other devices to install themselves.
A.
Plug and play
B.
Industry standard architecture
C.
System unit
D.
None of the above
【简答题】虚电路服务分为____和____两种。
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